Gearing.



F. SCHNEIDER.

' GEARING.

APPLICATION FILED AUG. 12, 1911.

1,104,736. Patented July 21, 1914.

Hllll I HH srnivss PAT OFFICE.

FRJELNKLIN SGHNEIIDER, F CLEVELAND, OHIO, ASSIG-NOR, BY MESNEASSIGNMENTS, T0 THE VAN DOl-tll' ELEGERZC TOOL COMPANY, OF CLEVELAND,OHIO, A COBJPDRA- GEARING.

onaco.

Specification of Letters Patent.

Patented July 21, 1914.

Application filed .liugilsil 12, 1911. Serial No. 643,796.

To all whom it may conceive Be it known that I, FRANKLIN SCHNEIDER, acitiaen of the United States, and a resident of Cleveland, county ofCuyahoga, and State of Ohio, have invented a new and useful Improvementin Gearing, of which the following is a specification, the principle ofthe invention being herein explained and the best mode in which l havecontemplated ap plying that principle, so as to distinguish it fromother inventions.

The present invention relates to gearing, and it has'os a particularobject provision of an eleciarically operated tool in which. theoperative ports may beeesily and compactly assembled, and in which theower will be transmiiatedfrom the motor to t Le tool evenly and withminimum of strain on the mechanism... l

The annexed drawing and the following escription set forth in detailcertain mecheonscono titut-ing, however, but one nspiechsnicel forms inwhich the or? the invention may he used.

annexed drawingzedfigure l is e c on a tool embodying my inven- 51g. 2is a section on the line AA.

co. og' which houses the operative g refersbly cylindrical as shown inthe 'drmving: in the present instance the casing com prises a'cylindrical portion 1 closed at one s end by a head and at the other endby a partition 2. and beyond this partition is a stepped extension ofthe casing 3. The par- --tition 2 is, furthermore, provided on its outerface with a cylindrical projection 4-, this projection lying in acompartment 29 formed by the partition 2 and aportion of the steppedextension 3.

A motor 5 is mounted iii-thecasing between the head and the partition 2and is provided in the with an anti friction bearing 6 and in thepartition with an antifriction bearing '5, the partition beingitsperforate except for the opening through which extends the spindle 28of the motor.

On the outer end of the spindle 28 Within the compartment 29 is secureda pinion 8.

A rotatable sleeve 9 projection & of the partition 2 and in the outerend of the stepped extension 3 of the casing. This sleeve at its outerend is embodying the invention, shah dis es" of thotool may be or" anyform but isis journaled in the inner end oi sleeve 9 in the projection 4of the partition 2 While intermediate its ends the sleeve is providedWith an anti-friction thrustbearing 16.

Secured to the inner end of the sleeve 9 \viihin the compartment 29 isan internal annular gear 17, the axis of the sleeve 9 and of the gear 17being directly in line with the axis of the motor'spindle 28.

Journaled at their respective ends in partition E3 and in the extension4 therei'rom, and parallel with the motor spindle 28 and the alinedwork-spindle, (sleeve 9 and member 12 together forming what I will terma Work spindle) are one or more shafts 18 mounted in anti-frictionbearings 19. A gear 20 is secured to shaft 18 and meshes with the pinion8, while a second gear 21 secured to the shaft 18' meshes with the in--ternal gear 17.

It will be obvious that the mechanism herein described may be readilyassembled.

After the motor is placed in its casing. the partition 2 is secured tothe art 1 of'tho casing by screws 26 the shai i. '18 With its gearsbeing inserted immediately thereafter. The sleeve 9 may be then readilyput in place including the gear 17 after which the portion 3 of thecasing is secured to the partition 2 and portion 1 y screws 27.

After the parts are assembled, it will be seen that the axis of rotationof the motor spindle 28, the annular driving gear 17 and the workspindle are all in direct alinement,

moreover, the cylindrical member 12, which,

as tool-receiving socket forms part of such Work-spindle, connected atits inner end, or base to the hubof such gear 17 thus eliminoting muchof twisting strain that occurs in. prevailingconstruction.

As the partition 2 and the integral cylindrical projection i from suchpartition provide not only a self-contained support for the shaft 18with its gears, but also the main bearing for internelg-ear 1'2. it willbe seen on v so i

as i

that such latter gear and the pinion 19 on shaft 18 cannot be readilythrown out of proper alinement no matter to how severe a strain they maybe subjected. This construction has been found in practice to giveunusually satisfactory results": whereas heretofore the portion of themechanism in question has always been a weak'point.

The end-thrust on the work-spindle being taken up by the hearing 16,which is large enough to be amply adequate for the purpose, the bearing15, is relieved of all but lateral strain and this, especially where aplurality of spindles 18 are employed, as the thrust of the latter onthe-gear 17 will then be more. or less equalized.

For the purpose of lubrication, the chamber or compartment 29 is closedat its outer, as Well as its inner end, the hub of gear 17 being pluggedor otherwise made imperforate with this in view. Such compartment isthen designed to be packed with a semifluid grease in which the gearsthat connect the motor and Work spindles may freely churn about and thusinsure the thorough lubrication of every working part. The foregoingwill serve also .to lubricate the bearings I provided for the inner endof the motonspindle. For the outer end of the worlnspindle, however, apocket or chamber 24: is provided in the casing 3, from which one port22 leads through the bushing that surrounds sleeve 9 directly to thebearing of such sleeve; while a second port 23 communicates directlywith the end-thrust bearing 16. A more fluid oil, such as machine oil,is preferably supplied to the pocket 24: for the bearings last referredto. The thorough distribution of theoil passing through port 22 isinsured by providing one or more longitudinally extending felt pads 30in corresponding recesses n the bearing of sleeve 9.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as re gards themechanism herein disclosed, provided the means stated by any of thefollowing claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as myinvention 1. In mechanism of the character described, the combination ofa casing; a motor mounted therein and provided with a spindle; a pinionsecured on said spindle; a

ond gear rotatable with said first gear; :13

tool-spindle alined with said motor-spindle;

' an anti-friction bearing for said tool-spindle adjacent its inner end;a thrust-bearing for said tool-spindle disposed between its ends; and aninternal gear secured to said tool spindle between the anti-frictionbearing and thrust bearing and in mesh withthe second gear. v

2. In mechanism "of the character. described, the combination of acasing; a mo-, tor mounted therein and provided with a spindle; a pinionsecured on said spindle ;'a. tool-spindle alined with saidmotor-spindle; an anti-friotion bearing for said tool-spindle adjacentits inner end; a. thrust bearing for said tool spindle disposedbetweenits ends; an internal gear secured to said tool spindle betweenthe anti-fric tion bearing and the thrust hearing; a rotatable shaftparallel with said motor spindle and tool-spindle; and two gears'securedto said shaft, one of said gears meshing with said pinion and the othermeshing with said internal gear.

3. In mechanism of the character dcscribed the combination of a casing;a motormounted in said casing; a partition near one end of the latter,the motor-spindle pro jecting through said partition and the latterbeing provided on its outer face with an extension; :1. tool-spindlejournaled in the end of said casing and in said extension; an internalgear attached to the inner end of said tool-spindle; a rotatable shaftparallel with said motor-spindle and journaled zit one end in saidpartition and at the other in such extension; and pinions on said shaftconnecting the same with said motor spindle and with said internal gear,respectively.

4%. In mechanism of the character described, the combination of a,casing; a partition near one end of the latter; a motor mounted in saidcasing, the motor spindle projecting through said partition; :1 toolspindle journaled in the end of said casing and in said partition; andgearing disposed between the outer face of the partition and theadjacent end of the casing, and connecting the motor spindle with thetool spindle.

Signed by me this 9th day of Aug, 1911.

FRANKLIN SCHNEIDER.

Attested by MYRTLE K. Sermon. JNo. F. OBERLIN.

